CGG‘s patented method involves full-wave inversion for seismic surveys at different times over the same underground formation. By using a time-lag cost function with target regularization terms, the approach enhances reservoir signal quality and reduces noise outside reservoirs. GlobalData’s report on CGG gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on CGG, Marine seismic data acquisition was a key innovation area identified from patents. CGG's grant share as of February 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.

4d seismic monitoring of underground formation for natural resources

Source: United States Patent and Trademark Office (USPTO). Credit: CGG SA

A recently granted patent (Publication Number: US11880009B2) outlines a method for monitoring targeted natural resources within an underground formation using seismic data. The method involves obtaining baseline and monitor datasets from seismic surveys conducted at different times, generating synthetic datasets based on models of the underground formation, and calculating a joint inversion time-lag cost function with target regularization. By updating the baseline and monitor models through minimizing the cost function, an image of the underground formation is generated to identify changes in the location and volume of the natural resources over time.

Furthermore, the patent includes a seismic data processing apparatus that implements the method described. This apparatus features an interface for data acquisition, a data processing unit for generating synthetic datasets, calculating the cost function, and updating models iteratively until a convergence criterion is met. The apparatus is designed to identify changes in natural resource locations and volumes within the underground formation based on the updated models. The patent also covers a non-transitory computer-readable recording medium storing executable codes to perform the monitoring method, emphasizing the importance of regular updates and convergence criteria related to the cost function for accurate results in tracking changes in targeted natural resources within underground formations.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.